Scientists invent a uranium-eating molecule that could help turn nuclear junk into fuel
By Ker ThanPosted 07.01.2008 at 11:40 am 5 Comments
With global warming grabbing headlines, carbon-free nuclear power is gaining popularity—and with it, concerns over what to do with the spent uranium fuel. The largest long-term burial project, Yucca Mountain, has stalled, and even though uranium's first trip through a reactor extracts only 5 percent of its energy, power plants in the U.S. don't reprocess fuel. This is mainly because the most common form of uranium, an ion called uranyl, is extremely difficult to extract from the spent fuel rods. But a new Pac-Man-like molecule could change that.
A growing cloud of trash threatens space tourism and has experts scrambling to clear the mess
By Ker ThanPosted 06.27.2008 at 1:58 pm 9 Comments
Along with satellites and space stations, Earth is surrounded by tens of millions of pieces of floating space debris. Like any landfill, the trash is diverse, ranging from dead satellites to castaway rocket parts to flecks of paint. On average, over the past 40 years, one piece of space junk has fallen to Earth every day.